Stable superhydrophobic coatings from polyelectrolyte multilayers

Zhai L., Cebeci F., Cohen R., Rubner M.

NANO LETTERS, vol.4, no.7, pp.1349-1353, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 4 Issue: 7
  • Publication Date: 2004
  • Doi Number: 10.1021/nl049463j
  • Journal Name: NANO LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1349-1353
  • Istanbul Technical University Affiliated: No

Abstract

The present study demonstrates that the superhydrophobic behavior of the lotus leaf structure can be mimicked by creating a honeycomb-like polyelectrolyte multilayer surface overcoated with silica nanoparticles. Superhydrophobicity was achieved by coating this highly textured multilayer surface with a semifluorinated silane. The surface maintains its superhydrophobic character even after extended immersion in water. The key structural elements needed to create stable, superhydrophobic coatings from polyelectrolyte multilayers are discussed.